Waiting queue control method and apparatus for convolutional Turbo code decoder

Abstract

The invention relates to a waiting queue control method and a waiting queue control device for a convolution Turbo code decoder. The method comprises: firstly, inputting FEC blocks by a high-speed bus interface; receiving the FEC blocks according to the polling priority rule and caching the FEC blocks into various FIFO queues in an FIFO mode; and inquiring the forestage FIFO queue state and the current priority of the various FIFO queues according to FIFO queue reading requests transmitted by various sub-convolution Turbo code decoders, and transmitting FEC blocks with corresponding number and higher priority in nonempty FIFO queues to the various sub-convolution Turbo code decoders which transmit the FIFO queue reading requests according to the number of the FIFO queue reading requests transmitted by the various sub-convolution Turbo code decoders if the FEC blocks are transmitted to the various FIFO queues. The method and the device reduce the waiting time of the FEC blocks in the queues, make the forestage waiting queue of the multi-core structure decoder not become a bottleneck for restricting the data throughput of the decoder again, and improve the design flexibility of the decoder.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to a waiting queue control method and device for a CTC (Convolutional turbo code, Convolutional Turbo code) decoder. [0002] In the IEEE 802.16e standard mobile communication system (referred to as 802.16e system), the front-stage waiting queue scheduling method of the CTC decoder with multi-component code decoding core structure Background technique [0003] With the rapid development of wireless communication networks, wireless communication networks have gradually become an indispensable tool in people's daily work and life, and the demand for Internet access through wireless communication networks is also becoming increasingly strong. Based on the IEEE 802.16 standard wireless metropolitan area network technology, its data transmission speed can reach 75.75Mbps, and it has the advantages of strong scalability, large data throughput, fast launch to the market, and wide co...

AI Technical Summary

Problems solved by technology

From the high-speed bus interface to the data transmission between the various component code decoders inside the decoder, the scheduling of the waiting queue in the prior art is to queue the input FEC blocks in a first-in first-out manner, but if there are two component codes When the decoder sends requests to the receiving control module at the same time, the receiving control module can only send FEC blocks sequentially from the waiting queue to a certain component code decoder at the lower level, and the FEC blocks that are ranked behind in the waiting queue can only be in the queue. This increases the waiting time of the FEC block in the queue, increases the decoding time of the entire decoder, and limits the data throughput rate of the waiting queue

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